EN Engine
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Power Train Variation
OthersChina Chile
3.0 L V6 Common rail diesel engine (S-engine) and 3.8 L V6 gasoline engine (Lambda) are used for EN S-engine is the first used in HMC and Lambda engine is already used for NF, TG, CM
Trang 4S-3.0 V6 E-VGT CRDi Diesel Engine
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(Instant Starting System)
Max power (Ps/RPM) 238/4,000 Fuel pressure control Inlet & Outlet
(for piezo injector)
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Main Feature
Fuel EconomyEmissionNVHDurabilityStarting
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Main Feature
• ISS : Instant Starting System • CGI : Compacted Graphite Iron • WCC : Warm-up Catalytic Converter
Trang 9• CGI (Compacted Graphite Iron)
- Purpose : Engine power up & reduce CO2 level by Increasing max combustion pressure (190bar) - Benefit : Reduced weight (10%) and engine length
Bed Plate
-Improved NVH & durability
-When replacing cylinder block, the bed plate should be replaced together (Bearing cap integrated)
Upper Oil Pan - Aluminum : Improved NVH Lower Oil Pan - Steel plate
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Cylinder Block
- Aluminum cylinder head- V6, 4 valves DOHC
- Applied plastic head cover : weight is reduced - Integrated cam cap (ladder type) : improved NVH- Left and Right cylinder head gasket are different
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Moving System
- 4 Valve DOHC
- Hollow type camshaft
- Low-tension type piston ring
- Piston double wave cooling gallery and oil jet
3 Vacuum pump Capa : 260cc/rev
Component of valve train
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Moving SystemMain bearing size
Crankshaft diameterBore sizeMain bearing (Color)Oil Clearance
Journal diameter mark
on the crankshaftJournal diameter mark on the cylinder block
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Moving System
(Lower connecting rod bearing is one size)
Connecting rod bearing size
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Timing System
- Duplex bush timing chain is used for S-engine.- Exhaust camshaft is operated by scissors gears.- Hydraulic auto-tensioner is used for timing chain.- Oil jet is used for timing chain lubrication.
- Mechanical type tensioner is used for oil pump chain.
[Duplex bush chain]
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Timing SystemScissors gear
- Purpose : Little noise reduction
- It does not affect engine performance
[Timing Mark]
Scissors gearIntake cam gear
CMP sensor target wheel
Trang 181 Install the camshaft locking tools (09231-3A000).2 Align the crankshaft timing position.
3 Install the upper & lower chain guides. [Camshaft locking tool (09231-3A000)]* This tool has two components with different size
One for LH sprocket (smaller), the other for RH sprocket (bigger).
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Trang 19[Caution] The yellow color on the timing chain are for new part However the color can be erased with mileage Therefore ‘O’ mark can be used instead.
2 Install the tensioner lever.
3 Install the hydraulic auto-tensioner.4 Remove the sprocket locking tools.
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Driving Belt
- Serpentine belt
- Compress auto-tensioner (turn to clockwise)- Insert driving belt to water pump side
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Lubrication System
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Lubrication SystemOil pump
- Oil pump : Rotary type
- Relief pressure : 5.8 ± 0.5bar
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Oil pump replacement
- Remove the oil drain plug.
- Remove the acoustic shield cover.- Remove the lower oil pan.
- Remove the baffle plate.- Remove the oil pump.
Oil drain plug
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Lubrication SystemOil filter replacement
- Remove the Oil filter cap with a 32mm wrench.- Move up the cap and hold it for oil drain.
- Replace the filter element service kit - Install oil filter cap (Torque: 2.5kgfm)
32mm wrench
Oil filter cap
Filter element
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